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mfd: omap-usb-tll: Add device tree support and binding information 

Allows the OMAP USB TLL module to be specified via device tree.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
hifive-unleashed-5.1
Roger Quadros 2013-01-29 15:20:55 +02:00 committed by Samuel Ortiz
parent 9f4a3ece05
commit 48130b8f5c
2 changed files with 27 additions and 0 deletions
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17
Documentation/devicetree/bindings/mfd/omap-usb-tll.txt 100644
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@ -0,0 +1,17 @@
OMAP HS USB Host TLL (Transceiver-Less Interface)
Required properties:
- compatible : should be "ti,usbhs-tll"
- reg : should contain one register range i.e. start and length
- interrupts : should contain the TLL module's interrupt
- ti,hwmod : must contain "usb_tll_hs"
Example:
usbhstll: usbhstll@4a062000 {
compatible = "ti,usbhs-tll";
reg = <0x4a062000 0x1000>;
interrupts = <78>;
ti,hwmods = "usb_tll_hs";
};

10
drivers/mfd/omap-usb-tll.c
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@ -28,6 +28,7 @@
#include <linux/err.h>
#include <linux/pm_runtime.h>
#include <linux/platform_data/usb-omap.h>
#include <linux/of.h>
#define USBTLL_DRIVER_NAME "usbhs_tll"
@ -311,10 +312,18 @@ static int usbtll_omap_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id usbtll_omap_dt_ids[] = {
{ .compatible = "ti,usbhs-tll" },
{ }
};
MODULE_DEVICE_TABLE(of, usbtll_omap_dt_ids);
static struct platform_driver usbtll_omap_driver = {
.driver = {
.name = (char *)usbtll_driver_name,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(usbtll_omap_dt_ids),
},
.probe = usbtll_omap_probe,
.remove = usbtll_omap_remove,
@ -467,6 +476,7 @@ int omap_tll_disable(struct usbhs_omap_platform_data *pdata)
EXPORT_SYMBOL_GPL(omap_tll_disable);
MODULE_AUTHOR("Keshava Munegowda <keshava_mgowda@ti.com>");
MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>");
MODULE_ALIAS("platform:" USBHS_DRIVER_NAME);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("usb tll driver for TI OMAP EHCI and OHCI controllers");